Metazoan Parasites of Young-of-the-Year Paddlefish from Lewis and Clark Lake, Nebraska, U.S.A (original) (raw)
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Proceedings of the Oklahoma Academy of Science, 2017
Between November 2014 and November 2016, 85 individual fishes (13 taxa from seven families) were collected from four sites in the Arkansas River drainage and three sites in Red River drainage of Oklahoma and examined for helminth parasites. Eighteen endoparasites (six trematodes, five cestodes, seven nematodes) were found in 32 of 85 (38%) fish including: Alloglossidium progeneticum in Black Bullheads (Ameiurus melas), Clinostomum marginatum in Slendar Madtoms (Noturus exilis), Crepidostomum sp. in a Plateau Darter (Etheostoma squamosum), Caecincola sp. in Slenderhead Darters (Percina phoxocephala), Posthodiplostomum minimum in a Redspot Chub (Nocomis asper), unknown metacercariae in a Slim Minnow (Pimephales tenellus), Bothriocephalus claviceps in a Banded Sculpin (Uranidea carolinae) and a Cardinal Shiner (Luxilus cardinalis), Essexiella fimbriatum in a Yellow Bullhead (Ameiurus natalis) and in an A. melas, Proteocephalus ambloplitis in a Western Creek Chubsucker (Erimyzon claviformis), Proteocephalus sp. in an E. squamosum and Grass Pickerels (Esox americanus), Schyzocotyle acheilognathi in E. claviformis, Rhabdochona cascadilla in L. cardinalis, Spinitectus micracanthus from largemouth bass (Micropterus salmoides), Dichelyne robusta and Spinitectus macrospinosus in a channel catfish (Ictalurus punctatus), Spiroxys sp. in E. claviformis, Textrema hopkinsi from a M. salmoides, and unknown larval nematodes in an E. americanus. Thirteen new host and six new geographic distributional records are documented.
Diversity, 2021
Distribution and abundance of common parasitic nematodes in marine fishes is not well documented in many geographic regions. Understanding the influence of large-scale environmental changes on infection rates of fish by nematodes requires quantitative assessments of parasite abundance for multiple host species. We collected samples of two species of cod and eight species of rockfish (total of 232 specimens) from waters near Kodiak Island, Alaska, USA during Spring and Summer of 2015, and dissected and recorded all internal nematode parasites. We quantified the prevalence and intensity of nematode parasites in the ten host species, and tested for differences in prevalence among host species. We found three species of nematode: Anisakis simplex, sensu lato (Van Thiel), Pseudoterranova decipiens, sensu lato (Krabbe), and Hysterothylacium sp. (Ward and Magath). Eighty-two percent of the examined fish were infected with at least one parasitic nematode. The overall prevalence of P. decipi...
Shamsi, Poupa, Justine Adult and larval nematodes from fishes off NC
A collection of nematodes from the Muséum National d'Histoire Naturelle (National Museum of Natural History), Paris, France, was studied. The nematodes had previously been collected from a range of marine fish hosts. The aim of this study was to investigate the identity of these nematodes. Detailed body measurements of the nematodes were taken via light microscopy and where possible first and second internal transcribed spacers (ITS-1 and ITS-2) of ribosomal DNA were subjected to PCR, purified and sequenced. Six species and three larval types were found from a range of fish species and included 13 new host records and two new geographical records. Of the taxa found, Hysterothylacium kajikiae is the only species which may have zoonotic potential. The majority of host fish in this study are edible species, commercially and recreationally fished and frequently incorporated into the cuisine of New Caledonia as raw fish dishes. This study will allow better understanding of the diversity, life cycles, distribution and host-parasite relationships in the New Caledonia area.
Journal of the Arkansas Academy of Science, 2014
Between June 2012 and January 2014, 147 fishes (10 species) within five families were collected from watersheds in 8 counties of Arkansas and examined for helminth parasites. Almost every fish species examined harbored at least one or more helminth parasite, including 5 trematodes (Alloglossidium sp., Plagioporus sp., Crepidostomum sp., Clinostomum marginatum and unknown metacercaria), 2 cestodes (unknown cyclophyllidean cysticerci and Corallotaenia parva), 3 nematodes (Spiroxys sp., Capillaria catostomi, and Eustrongylides sp.), and 3 acanthocephalans (unknown cystacanths, Neoechinorhynchus sp., and Leptorhynchoides sp.). We document 16 new host and 2 new distributional records for these helminths. In addition, this is the first time any helminth has been reported from the Blackspot Shiner, Notropis atrocaudalis and Caddo Madtom, Noturus taylori.
Proceedings of the Oklahoma Academy of Science, 2018
Parasitic examination of two Pealip Redhorses, Moxostoma pisolabrum collected in March 2017 from the Illinois River, Cherokee County, Oklahoma, yielded a variety of taxa. Found were a new species of monogene, Dactylogyrus sp., a plerocercoid of the tapeworm, Proteocephalus ambloplitus, a nematode, Rhabdochona milleri, and a copepod, Ergasilus megaceros. We document four new host and three new geographic distributional records for these parasites, and the first time, to our knowledge, that this fish has been reported as a host.
PARASITES OF NATIVE AND NONNATIVE FISHES OF THE LITTLE COLORADO RIVER, GRAND CANYON, ARIZONA
Journal of Parasitology, 2004
A 2-year, seasonal, parasitological study of 1435 fish, belonging to 4 species of native fishes and 7 species of non-native fishes from the lower Little Colorado River (LCR) and tributary creeks, Grand Canyon, Arizona, yielded 17 (possibly 18) species of parasites. These comprised 1 myxozoan (Henneguya exilis), 2 copepods (Ergasilus arthrosis and Lernaea cyprinacea), 1 acarine (Oribatida gen. sp.), 1 piscicolid leech (Myzobdella lugubris), 3 (possibly 4) monogeneans ( Gyrodactylus hoffmani, Gyrodactylus sp., Dactylogyrus extensus, and Ligictaluridus floridanus), 4 nematodes (Contracacecum sp., Eustrongylides sp. Rhabdochona sp., Truttaedacnitis truttae), 3 cestodes (Bothriocephalus acheilognathi, Corallobothrium fimbriatum and Megathylacoides giganteum), and 2 trematodes (Ornithodiplostomum sp., Posthodiplostomum sp.). Of these, Rhabdochona sp. is the only adult parasite native to the LCR. Infection intensities (worm burden) of Ornithodiplostomum sp and B. acheilognathi were positively correlated with length of humpback chub, Gila cypha. Adult helminths showed a high degree of host specificity, the exception being B. acheilognathi, which was recovered from all fish species examined but was most abundant in cyprinids. Significantly higher abundance of B. acheilognathi in speckled dace, Rhinichthys osculus in the larger of the two creeks, Big Canyon Creek (BCC), may be related to higher population densities of dace. Abundance of B. acheilognathi in the humpback chub was highest in the fall and lowest in the summer, in both reaches of the LCR. This pattern was mirrored only partially by the tapeworms in speckled dace, and not by dace in the creeks, indicating some difference in transmission dynamics in the two fish hosts in different habitats. There were no major taxonomic differences in parasite assemblages between the two different reaches of the river (LC1 and LC2), mainly due to their connectivity, similar physical properties and, fish assemblages. Parasite community diversity was very similar in humpback chub, regardless of sampling site or time. Differences among sites (BCC, Salt Creek (SAC) , LC1 and LC2) can be related to the fish hosts present (or absent), and a result of the host specificity shown by the adult parasites. The parasite fauna of the LCR is numerically dominated by B. acheilognathi, and by the metacercariae of Ornithodiplostomum sp. The richest and most diverse component community occurred in a non-native species, the channel catfish, Ictalurus punctatus, but infracommunity species richness was highest in a native host, humpback chub. The generally species-poor native parasite fauna is due to the physical and biological characteristics of the LCR, namely the high travertine component and seasonal flooding. This in turn results in an invertebrate community which is low in species richness and diversity, as well as a species-poor native fish fauna.